Modify the polish() function in ukui-styles/proxy-style/proxy-style.cpp file
Fix the bug of fontsize types of int to double
Modify the Qt5UKUIPlatformTheme() function in qt5-ukui-platformtheme/qt5-ukui-platform-theme.cpp file
Fix the bug of spinbox can't read the size of fontsize that int type
Modify the MainWindow() function in test/system-settings/mainwindow.cpp